alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Suspicious Terse HTTP Request to textbin"; flow:established,to_server; http.request_line; content:"GET /raw/"; startswith; http.host; bsize:11; content:"textbin.net"; fast_pattern; http.header_names; to_lowercase; content:!"|0d 0a|accept"; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|user-agent|0d 0a|"; classtype:bad-unknown; sid:2034461; rev:4; metadata:attack_target Client_Endpoint, created_at 2021_11_15, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_30;)